Soundproof drainage system adequa AR®

The right choice for a better life


Soundproof drainage system adequa AR for the evacuation of low and high temperature domestic waste water, ventilation ducting associated with the above, rainwater conduits within the structure of the building.

Principal benefits

  • Complies with the most demanding soundproofing requirements.
  • The best protection against fire available on the market.
  • Totally adapted to the Spanish Technical Building Code (CTE).
  • All pipes are structured and bear AENOR N Certification (UNE-EN 1453) marking.
  • The entire system is covered by a Technical Suitability Document (D.I.T.) issued by the Eduardo Torroja Institute for Construction Sciences (The Spanish Scientific Research Council – CSIC).
  • B-s1,d0 classification on pipes and parts: non-flammable.
  • Excellent level of soundproofing throughout the system. Soundproofed siphon trap.
  • Special accessible parts that comply with CTE specifications.
  • Range of pipes and parts compatible with grey water evacuation system.
  • Small clean water evacuation system assembled using glued joints just like the grey water system.
  • Spanish diameters.


  • Pipes and fittings diameters from 40 to 250 mm.
  • Glued joint in 40 and 50 mm and elastic seal for rest of range.



Technical documentation


Quality: standards and certification

  • Manufactured in accordance with the basic sanitation, fire protection and noise suppression requirements established in the Spanish Technical Building Code.
  • PVC pipes certified in accordance with standard UNE-EN 1453-1, from 40 mm to 200 mm.
  • PVC fittings certified in accordance with standard UNE-EN 1329-1.
  • PVC pipes and fittings certified as regards Noise behaviour for soil and waste discharge in accordance with UNE-EN 14366. Soundproof performance
  • PVC pipes and fittings certified as regards reaction to fire with Euroclase B-s1, d0, in accordance with standard UNE-EN 13501-1.
Pipes Fittings
  •  System classified as regards reaction to fire with Euroclase B-s1, d0 in accordance with the Technical Report of the AFITI-LICOF Fire Testing and Research Centre.
    Technical report nº 1577T08-3
  • Pipes and fittings with con “Me” fire safety certification in accordance with French standard NF 513. “Me” certification measures the degree to which the material swells on being subjected to high temperatures, which contributes towards blocking off the downpipes and thereby limiting the spread of flame and smoke during a fire.

Pipes: Certificat Nº 31671

Fittings: Certificat Nº 31670

  • Acoustic behaviour test carried out by the Fraunhofer Institute of Stuttgart (Germany) in accordance with standard EN 14366.
    Test report P-BA 55/2018e